Sonia is the sister of Sonic and Manic is the brother of Sonic. Notice how the SO in Sonia and the NIC in Manic make SONIC.
Manic is sonic's brother & Sonia is sonic's sister
manic then sonic then sonia
Manic and Sonia are Sonic's brother and sister in Sonic Underground only.
In Sonic underground they are
Sonia was Sonic's (and Manic's) sister in Sonic Underground. She did not appear in any games.
sonia is sonic's sister in sonic underground you will find out about that and manic the hedgehog is sonic's brother
manic is 16 years old he (and sonic and sonia) turned 16 in episode 3
Sonic's brother is "Manic" and his sister is "Sonia."
Yes as you can see Sonia is more mature than Sonic and Manic because they act more childish than her + you can see they are boys. Glad I Could Help *
I found a Sonia one so I put it in related links.
Sonic has a brother (Manic) and a sister (Sonia).
It the same day as Sonic and Sonia's because they are triplets